May 26 » Thousand Days' War: The Colombian Conservative Party turns the tide of war in their favor with victory against the Colombian Liberal Party in the Battle of Palonegro.
June 20 » Baron Eduard Toll, leader of the Russian Polar Expedition of 1900, departs Saint Petersburg in Russia on the explorer ship Zarya, never to return.
July 2 » The first Zeppelin flight takes place on Lake Constance near Friedrichshafen, Germany.
July 19 » The first line of the Paris Métro opens for operation.
August 3 » The Firestone Tire and Rubber Company is founded.
September 13 » Filipino insurgents defeat a small American column in the Battle of Pulang Lupa, during the Philippine–American War.
Day of death May 20, 1967
The temperature on May 20, 1967 was between 10.2 °C and 16.1 °C and averaged 12.6 °C. There was 9.3 hours of sunshine (58%). The partly clouded was. The average windspeed was 3 Bft (moderate breeze) and was prevailing from the west-southwest. Source: KNMI
March 18 » The supertanker Torrey Canyon runs aground off the Cornish coast.
April 24 » Cosmonaut Vladimir Komarov dies in Soyuz 1 when its parachute fails to open. He is the first human to die during a space mission.
April 28 » Vietnam War: Boxer Muhammad Ali refuses his induction into the United States Army and is subsequently stripped of his championship and license.
June 4 » Seventy-two people are killed when a Canadair C-4 Argonaut crashes at Stockport in England.
July 1 » Merger Treaty: The European Community is formally created out of a merger with the Common Market, the European Coal and Steel Community, and the European Atomic Energy Commission.
July 29 » Vietnam War: Off the coast of North Vietnam the USSForrestal catches on fire in the worst U.S. naval disaster since World War II, killing 134.
When copying data from this family tree, please include a reference to the origin: Robert Postt, "Family tree Postt", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-postt/I67.php : accessed March 2, 2026), "Pieter Johannes Cornelis Postt (1900-1967)".
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